Springer (Arcade)

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Uncompiled Code#

The last two code roms (springer.8 and springer.9) contain some uncompiled code fragments in them.

The first one is in springer.8 at 0x1A5:

    JR  Z,DIV560    ; NO
    RES 0,(HL)
    CALL    DIVOR   ; DIVER'S Y0
    LD  A,L
    AND 0FH ; Y0=16N
    JR  NZ,DIV560   ; NO.
    INC L
    CALL    DIVOR
    LD  HL,TCB040   ; RES 16N-F
    RES 6,(HL)
;
;   LEFT LIMIT
;
DIV560  EQU $
    LD  A,(IX+1)
    SUB 3*8+5
    JR  NC,DIV570
    LD  (IX+1),3*8+5    ; LEFT LIMIT
;
;   SIFT
;
DIV570  EQU $
    LD  A,(IX)
    SUB 5*8+4   ; DOWN SIFT
    JR  NC,DIV600   ; NO.
    LD  (IX),5*8+4  ; SET TAGDIV
    LD  C,A
    LD  B,00H
    CALL    DIVOR   ; Y0
    ADD HL,BC   ; Y0 COORDINATE
    LD  A,L
    AND 0FH ; Y0=16N ?
    JR  Z,DIV580    ; YES
    ADD A,0F2H  ; 16N<Y0=<16N+2 ?
    JR  C,DIV580    ; YES
    SUB 0F4H    ; 16N-2<=Y0<16N+2 ?
    EX  DE,HL
    JR  NC,DIV590   ; NO.
DIV580  EQU $
    LD  HL,TCB0

The second one is in springer.8 at 500:

                (COM120)    ; Y0-LIMIT
DIV620  EQU $
    AND A   ; CLEAR CY
    LD  BC,13
    SBC HL,BC   ; UNDER LIMIT ?
    AND A   ; CLEAR CY
    SBC HL,DE
    JR  NC,DIV630
    ADD HL,DE
    EX  DE,HL
DIV630  EQU $
    EX  DE,HL
    CALL    DIVY
;
;   MAGIC HAND & DISPLAY
;
DIV640  EQU $
    LD  A,(IX+2)
    AND 0FH ; DIRECTION
    LD  B,00H
    ADD A,A
    ADD A,A ; A*4
    LD  C,A
    LD  HL,DIVCHA
    ADD HL,BC
    EX  DE,HL   ; SAVE HL
    LD  A,(COM150)
    AND 80H ; MAGIC HAND ?
    LD  HL,TCB010
    JR  Z,DIV680    ; NO.
    BIT 1,(HL)  ; MAGIC HAND DATA
    JR  NZ,DIV650
    SET 1,(HL)
    LD  HL,TCB050   ; COUNTER
    LD  (HL),00H    ; CLEAR
    JR  DIV660
DIV650  EQU $
    LD  HL,TCB050
    INC (HL)
    BIT 4,(HL)  ; END OF M-HAND ?
    JR  NZ,DIV670   ; YES
    LD  A,(HL)
DIV660  EQU $
    CP  03H ; SHORT HAND
    INC DE
    INC DE
    JR  NC,DIV700   ; NO.
    INC DE
    JR  DIV700
DIV670  EQU $
    DEC (HL)
    JR  DIV690
DIV680  EQU $
    RE

The third one is in springer.9 at 0x60E:

D-1 SRC

<LIST
    TITLE   DIVER CONTORL
;
;
;
;   TCB USAGE
;   TCB010  0 UP-SHIFT
;       1 MAGIC HAND DATA
;       2 DOWM-SHIFT
;   TCB040  0 FIRST CONTACT
;       1 STRUGGLE
;       2 MEDUSA
;       3 MO
;       4 OCTPUS
;       5 REACTION
;       6 *16 STOP
;       7 OCTPUS X-MOVING
;   TCB050  STRUGGLE COUNTER
;   TCB060  OXYGEN COUNTER
;   TCB070  VERTOR
;   TCB080  DIRECTION COUNTER
;   TCB090  DOT COUNTER
;   TCB100  PICTURE COUNTER
;   TCB110  +Y DATA
;   TCB120  +X DATA
;   TCB130  -Y DATA
;   TCB140  -X DATA
;   TCB150  REACTION COUNTER
KEHEHE  EQU 0
DIVER   EQU $
    LD  HL,TCB040
    BI